I've made 3 progressively larger prototypes for a solar tracker. The heart of the mechanism (my own idea / design) is a 'sleeve' tube with a helical slot. A guide pin fits through the slot into a tube that fits inside the sleeve. As a motor lifts the inner tube, it's forced by the guide pin to...
Pure rank amateur doing various solar-based projects that, engineering-wise, take me way out of my comfort zone. Great for ideas, lousy with implementation, hehe!